js实现数字转人民币、美元的大写汉字

function convertCurrency(money,type) {
        //汉字的数字
        var cnNums = new Array('零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖');
        //基本单位
        var cnIntRadice = new Array('', '拾', '佰', '仟');
        //对应整数部分扩展单位
        var cnIntUnits = new Array('', '万', '亿', '兆');
        //对应小数部分单位
        var cnDecUnits = new Array('角', '分');
        //整数金额时后面跟的字符
        var cnInteger = '整';
        //整型完以后的单位
        var cnIntLast = '元';
        if(type=='$'){
            cnDecUnits = new Array('', '美分');
            cnIntLast = '美元';
        }
        //最大处理的数字
        var maxNum = 999999999999999.99;
        //金额整数部分
        var integerNum;
        //金额小数部分
        var decimalNum;
        //输出的中文金额字符串
        var chineseStr = '';
        //分离金额后用的数组，预定义
        var parts;
        if (money == '') { return ''; }
        money = parseFloat(money);
        if (money >= maxNum) {
            //超出最大处理数字
            return '';
        }
        if (money == 0) {
            chineseStr = cnNums[0] + cnIntLast + cnInteger;
            return chineseStr;
        }
        //转换为字符串
        money = money.toString();
        if (money.indexOf('.') == -1) {
            integerNum = money;
            decimalNum = '';
        } else {
            parts = money.split('.');
            integerNum = parts[0];
            decimalNum = parts[1].substr(0, 2);
        }
        //获取整型部分转换
        if (parseInt(integerNum, 10) > 0) {
            var zeroCount = 0;
            var IntLen = integerNum.length;
            for (var i = 0; i < IntLen; i++) {
                var n = integerNum.substr(i, 1);
                var p = IntLen - i - 1;
                var q = p / 4;
                var m = p % 4;
                if (n == '0') {
                    zeroCount++;
                } else {
                    if (zeroCount > 0) {
                        chineseStr += cnNums[0];
                    }
                    //归零
                    zeroCount = 0;
                    chineseStr += cnNums[parseInt(n)] + cnIntRadice[m];
                }
                if (m == 0 && zeroCount < 4) {
                    chineseStr += cnIntUnits[q];
                }
            }
            chineseStr += cnIntLast;
        }
        //小数部分
        if (decimalNum != '') {
            var decLen = decimalNum.length;
            for (var i = 0; i < decLen; i++) {
                var n = decimalNum.substr(i, 1);
                if (n != '0') {
                    if(type=='$'){
                        if(decLen>=2){
                            cnDecUnits = new Array('十', '美分', '毫', '厘');
                            chineseStr += cnNums[Number(n)] + cnDecUnits[i];
                        }else{
                            cnDecUnits = new Array('', '十美分', '毫', '厘');
                            chineseStr += cnNums[Number(n)] + cnDecUnits[i];
                        }
                    }else{
                        chineseStr += cnNums[Number(n)] + cnDecUnits[i];
                    }

                }
            }
        }
        if (chineseStr == '') {
            chineseStr += cnNums[0] + cnIntLast + cnInteger;
        } else if (decimalNum == '') {
            chineseStr += cnInteger;
        }
        return chineseStr;
    }
    console.log(convertCurrency(152.361))
    console.log(convertCurrency(152.361,'$'))